28591920

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:121

約数の個数: 320

約数和(自身を含む): 118087680

約数和(自身を除く): 89495760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 31, 35, 36, 40, 42, 45, 48, 54, 56, 60, 61, 62, 63, 70, 72, 80, 84, 90, 93, 105, 108, 112, 120, 122, 124, 126, 135, 140, 144, 155, 168, 180, 183, 186, 189, 210, 216, 217, 240, 244, 248, 252, 270, 279, 280, 305, 310, 315, 336, 360, 366, 372, 378, 420, 427, 432, 434, 465, 488, 496, 504, 540, 549, 558, 560, 610, 620, 630, 651, 720, 732, 744, 756, 837, 840, 854, 868, 915, 930, 945, 976, 1008, 1080, 1085, 1098, 1116, 1220, 1240, 1260, 1281, 1302, 1395, 1464, 1488, 1512, 1647, 1674, 1680, 1708, 1736, 1830, 1860, 1890, 1891, 1953, 2135, 2160, 2170, 2196, 2232, 2440, 2480, 2520, 2562, 2604, 2745, 2790, 2928, 3024, 3255, 3294, 3348, 3416, 3472, 3660, 3720, 3780, 3782, 3843, 3906, 4185, 4270, 4340, 4392, 4464, 4880, 5040, 5124, 5208, 5490, 5580, 5673, 5859, 6405, 6510, 6588, 6696, 6832, 7320, 7440, 7560, 7564, 7686, 7812, 8235, 8370, 8540, 8680, 8784, 9455, 9765, 10248, 10416, 10980, 11160, 11346, 11529, 11718, 12810, 13020, 13176, 13237, 13392, 14640, 15120, 15128, 15372, 15624, 16470, 16740, 17019, 17080, 17360, 18910, 19215, 19530, 20496, 21960, 22320, 22692, 23058, 23436, 25620, 26040, 26352, 26474, 28365, 29295, 30256, 30744, 31248, 32940, 33480, 34038, 34160, 37820, 38430, 39060, 39711, 43920, 45384, 46116, 46872, 51057, 51240, 52080, 52948, 56730, 57645, 58590, 61488, 65880, 66185, 66960, 68076, 75640, 76860, 78120, 79422, 85095, 90768, 92232, 93744, 102114, 102480, 105896, 113460, 115290, 117180, 119133, 131760, 132370, 136152, 151280, 153720, 156240, 158844, 170190, 184464, 198555, 204228, 211792, 226920, 230580, 234360, 238266, 255285, 264740, 272304, 307440, 317688, 340380, 357399, 397110, 408456, 453840, 461160, 468720, 476532, 510570, 529480, 595665, 635376, 680760, 714798, 794220, 816912, 922320, 953064, 1021140, 1058960, 1191330, 1361520, 1429596, 1588440, 1786995, 1906128, 2042280, 2382660, 2859192, 3176880, 3573990, 4084560, 4765320, 5718384, 7147980, 9530640, 14295960, 28591920]

約数ペア:

[(1, 28591920), (2, 14295960), (3, 9530640), (4, 7147980), (5, 5718384), (6, 4765320), (7, 4084560), (8, 3573990), (9, 3176880), (10, 2859192), (12, 2382660), (14, 2042280), (15, 1906128), (16, 1786995), (18, 1588440), (20, 1429596), (21, 1361520), (24, 1191330), (27, 1058960), (28, 1021140), (30, 953064), (31, 922320), (35, 816912), (36, 794220), (40, 714798), (42, 680760), (45, 635376), (48, 595665), (54, 529480), (56, 510570), (60, 476532), (61, 468720), (62, 461160), (63, 453840), (70, 408456), (72, 397110), (80, 357399), (84, 340380), (90, 317688), (93, 307440), (105, 272304), (108, 264740), (112, 255285), (120, 238266), (122, 234360), (124, 230580), (126, 226920), (135, 211792), (140, 204228), (144, 198555), (155, 184464), (168, 170190), (180, 158844), (183, 156240), (186, 153720), (189, 151280), (210, 136152), (216, 132370), (217, 131760), (240, 119133), (244, 117180), (248, 115290), (252, 113460), (270, 105896), (279, 102480), (280, 102114), (305, 93744), (310, 92232), (315, 90768), (336, 85095), (360, 79422), (366, 78120), (372, 76860), (378, 75640), (420, 68076), (427, 66960), (432, 66185), (434, 65880), (465, 61488), (488, 58590), (496, 57645), (504, 56730), (540, 52948), (549, 52080), (558, 51240), (560, 51057), (610, 46872), (620, 46116), (630, 45384), (651, 43920), (720, 39711), (732, 39060), (744, 38430), (756, 37820), (837, 34160), (840, 34038), (854, 33480), (868, 32940), (915, 31248), (930, 30744), (945, 30256), (976, 29295), (1008, 28365), (1080, 26474), (1085, 26352), (1098, 26040), (1116, 25620), (1220, 23436), (1240, 23058), (1260, 22692), (1281, 22320), (1302, 21960), (1395, 20496), (1464, 19530), (1488, 19215), (1512, 18910), (1647, 17360), (1674, 17080), (1680, 17019), (1708, 16740), (1736, 16470), (1830, 15624), (1860, 15372), (1890, 15128), (1891, 15120), (1953, 14640), (2135, 13392), (2160, 13237), (2170, 13176), (2196, 13020), (2232, 12810), (2440, 11718), (2480, 11529), (2520, 11346), (2562, 11160), (2604, 10980), (2745, 10416), (2790, 10248), (2928, 9765), (3024, 9455), (3255, 8784), (3294, 8680), (3348, 8540), (3416, 8370), (3472, 8235), (3660, 7812), (3720, 7686), (3780, 7564), (3782, 7560), (3843, 7440), (3906, 7320), (4185, 6832), (4270, 6696), (4340, 6588), (4392, 6510), (4464, 6405), (4880, 5859), (5040, 5673), (5124, 5580), (5208, 5490)]